Good lessons/bad lessons: Follow your dream, even if it means stealing a guitar pick made from Satan's tooth.

Violence: None.

Language: Endlessly obscene.

Sex: None.

Drugs: Musicians have been known to smoke a joint, now and again.

Parents advisory: This is the "old" Jack Black, the R-rated would-be rocker so edgy to a generation of Tenacious D fans. Pretty raunchy, but pretty much a PG-13, as in 13-and-ups won't be scarred for life.